| Full text | |
| Author(s): |
Total Authors: 4
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| Affiliation: | [1] Univ Sao Paulo, Inst Biosci, Sao Paulo - Brazil
[2] Univ Texas Southwestern Med Ctr, Dept Neurosci, Dallas, TX - USA
[3] Hockaday Sch, Dallas, TX - USA
Total Affiliations: 3
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| Document type: | Journal article |
| Source: | FRONTIERS IN BEHAVIORAL NEUROSCIENCE; v. 10, JUL 5 2016. |
| Web of Science Citations: | 4 |
| Abstract | |
Rodents anticipate rewarding stimuli such as daily meals, mates, and stimulant drugs. When a single meal is provided daily at a fixed time of day, an increase in activity, known as food anticipatory activity (FAA), occurs several hours before feeding time. The factors affecting the expression of FAA have not been well-studied. Understanding these factors may provide clues to the undiscovered anatomical substrates of food entrainment. In this study we determined whether wheel-running activity, which is also rewarding to rodents, modulated the robustness of FAA. We found that access to a freely rotating wheel enhanced the robustness of FAA. This enhancement was lost when the wheel was removed. In addition, while prior exposure to a running wheel alone did not enhance FAA, the presence of a locked wheel did enhance FAA as long as mice had previously run in the wheel. Together, these data suggest that FAA, like wheel-running activity, is influenced by reward signaling. (AU) | |
| FAPESP's process: | 13/24740-3 - Effects of photoperiod on the expression of food anticipatory activity in mice: implications to the food- and light-entrainable circadian oscillators |
| Grantee: | Danilo Eugênio de França Laurindo Flôres |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate |